Redgranite, WI 54965 Frost Dates
Frost dates for Redgranite, WI, ZIP 54965
Typically, the last spring freeze lands around 05/08, roughly 253 days out. The first fall frost typically arrives around 10/06, about 151 frost-free days later.
The USDA Plant Hardiness Zone Map puts Redgranite in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 5a around Redgranite has about 6 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around Redgranite's last frost
05/08 is the middle of 30 years of NOAA records, not a promise. Plant by 04/24 and you're betting against frost in roughly 9 years out of 10. 05/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Redgranite compares
About 151 days separate Redgranite's last and first frost, putting it 35,057 of 40,283 ZIP codes nationally. Within WI, it ranks 538 of 860.
Learn more
the frost range explains how to read the range around Redgranite's dates instead of trusting one, and local microclimates explains what one yard in Redgranite can differ from the 54965 normal.